Tickstory

2 Questions below:

1. I downloaded and exported the symbol Eur/Nok. However when testing, I found my broker hasn't this symbol.
. May I change the HST and FXT file names from "EurNok" to "EurUsd"? Then test Eur/Nok with the broker symbol Eur/Usd?
. Is it feasible? Or any suggestion or reminding?

2. MT4 always cover the DukasCopy data exported by TickStory once connected to broker server.
. Does it mean MQ doesn't support TickStory? Doesn't like the work of TickStory?
. Does it mean MQ doesn't want users to do back test?
. Does it mean MQ will not support back test gadually?

I tried workaround 1 and it seems ok with the back testing.
However, when you open the chart after testing, "waiting for update" is always in the chart.
Why? How to fix?